<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
 <head>
  <meta http-equiv="content-type" content="text/html; charset=UTF-8">
  <title>Closes a persistent database connection</title>

 </head>
 <body><div class="manualnavbar" style="text-align: center;">
 <div class="prev" style="text-align: left; float: left;"><a href="function.db2-num-rows.html">db2_num_rows</a></div>
 <div class="next" style="text-align: right; float: right;"><a href="function.db2-pconnect.html">db2_pconnect</a></div>
 <div class="up"><a href="ref.ibm-db2.html">IBM DB2 函数</a></div>
 <div class="home"><a href="index.html">PHP Manual</a></div>
</div><hr /><div id="function.db2-pclose" class="refentry">
 <div class="refnamediv">
  <h1 class="refname">db2_pclose</h1>
  <p class="verinfo">(PECL ibm_db2 &gt;= 1.8.0)</p><p class="refpurpose"><span class="refname">db2_pclose</span> &mdash; <span class="dc-title">Closes a persistent database connection</span></p>

 </div>
 
 <div class="refsect1 description" id="refsect1-function.db2-pclose-description">
  <h3 class="title">说明</h3>
  <div class="methodsynopsis dc-description">
   <span class="type">bool</span> <span class="methodname"><strong>db2_pclose</strong></span>
    ( <span class="methodparam"><span class="type">resource</span> <code class="parameter">$resource</code></span>      
   )</div>

  <p class="para rdfs-comment">
   This function closes a DB2 client connection created with 
   <span class="function"><a href="function.db2-pconnect.html" class="function">db2_pconnect()</a></span> and returns the corresponding resources 
   to the database server.  
   <blockquote class="note"><p><strong class="note">Note</strong>: 
    <p class="para">
     This function is only available on i5/OS in response to i5/OS system 
     administration requests.
    </p> 
   </p></blockquote>
  </p>
  <p class="para">
   If you have a persistent DB2 client connection created with 
   <span class="function"><a href="function.db2-pconnect.html" class="function">db2_pconnect()</a></span>, you may use this function to close the 
   connection. To avoid substantial connection performance penalties, this 
   function should only be used in rare cases when the persistent connection 
   has become unresponsive or the persistent connection will not be needed for 
   a long period of time.
  </p>   
 </div>

 
 <div class="refsect1 parameters" id="refsect1-function.db2-pclose-parameters">
  <h3 class="title">参数</h3>
  <p class="para">
   <dl>

    
     <dt>
<em><code class="parameter">connection</code></em></dt>

     <dd>

      <p class="para">
       Specifies an active DB2 client connection.
      </p>
     </dd>

    
   </dl>

  </p>
 </div>

 
 <div class="refsect1 returnvalues" id="refsect1-function.db2-pclose-returnvalues">
  <h3 class="title">返回值</h3>
  <p class="para">
   成功时返回 <strong><code>TRUE</code></strong>， 或者在失败时返回 <strong><code>FALSE</code></strong>。
  </p>
 </div>

 
 <div class="refsect1 examples" id="refsect1-function.db2-pclose-examples">
  <h3 class="title">范例</h3>
  <p class="para">
   <div class="example" id="db2-pclose.example.basic">
    <p><strong>Example #1 Closing a persistent connection</strong></p>
    <div class="example-contents"><p>
      The following example demonstrates a successful attempt to close a 
      connection to an IBM DB2 i5/OS database.
    </p></div>
    <div class="example-contents">
<div class="phpcode"><code><span style="color: #000000">
<span style="color: #0000BB">&lt;?php<br />$conn&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #0000BB">db2_pconnect</span><span style="color: #007700">(</span><span style="color: #DD0000">''</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">''</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">''</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$rc&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #0000BB">db2_pclose</span><span style="color: #007700">(</span><span style="color: #0000BB">$conn</span><span style="color: #007700">);<br />if&nbsp;(</span><span style="color: #0000BB">$rc</span><span style="color: #007700">)&nbsp;{<br />&nbsp;&nbsp;&nbsp;&nbsp;echo&nbsp;</span><span style="color: #DD0000">"Connection&nbsp;was&nbsp;successfully&nbsp;closed."</span><span style="color: #007700">;<br />}<br /></span><span style="color: #0000BB">?&gt;</span>
</span>
</code></div>
    </div>

    <div class="example-contents"><p>以上例程会输出：</p></div>
    <div class="example-contents screen">
<div class="cdata"><pre>
Connection was successfully closed.
</pre></div>
    </div>
   </div>
  </p>
 </div>


 <div class="refsect1 seealso" id="refsect1-function.db2-pclose-seealso">
  <h3 class="title">参见</h3>
  <p class="para">
   <ul class="simplelist">
    <li class="member"><span class="function"><a href="function.db2-close.html" class="function" rel="rdfs-seeAlso">db2_close()</a> - Closes a database connection</span></li>
    <li class="member"><span class="function"><a href="function.db2-pconnect.html" class="function" rel="rdfs-seeAlso">db2_pconnect()</a> - Returns a persistent connection to a database</span></li>
   </ul>
  </p>
 </div>

 
</div><hr /><div class="manualnavbar" style="text-align: center;">
 <div class="prev" style="text-align: left; float: left;"><a href="function.db2-num-rows.html">db2_num_rows</a></div>
 <div class="next" style="text-align: right; float: right;"><a href="function.db2-pconnect.html">db2_pconnect</a></div>
 <div class="up"><a href="ref.ibm-db2.html">IBM DB2 函数</a></div>
 <div class="home"><a href="index.html">PHP Manual</a></div>
</div></body></html>
